Question

Q11

In a galvanic cell ____takes place at the anode and ____takes place at the cathode.

In a galvanic cell the electrical charge of the anode is ____and the electrical charge of the cathode is _______

Q12 Choose the atomic ions which are isoelectronic with Cl^-.

(a)Sc³⁺,Ca²⁺,Br⁺,Cl^-,P^2-,S^3-

(b)Sc³⁺,Mg²⁺,Na⁺,Cl^-,S^2-

(c)Sc³⁺,Ca²⁺,K⁺,S^2-,P^3-

(d)Sc³⁺,Ca²⁺,K⁺,F^-,S^2-,P^3-

Q13

. Arrange the following atoms in order of increasing size (small to large): Cl, F, P, and S.

____<____<____<_____

Arrange the following in order of decreasing ionisation energy: Br, Ar, Ar+, and Cl. Put charges in parentheses.

_____>_____>______>_____

Q14

For each pair, choose the species with the greater EEA:

(a) P, O

(b) Se, Cl

(c) Te, I

Q15

One of the elements has these ionisation energies and electron affinity (all in kJ·mol^–1): E_i1 = 503, E_i2 = 965, E_i3 = 3600, E_EA = 46. In what group (column) of the periodic table is this element found? Enter the number (no units).

Q16

Which is the least electronegative element?

F,Cl,Br,I